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Author Topic: Feedback To Source  (Read 387375 times)

nievesoliveras

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Re: Feedback To Source
« Reply #495 on: April 30, 2009, 02:31:54 PM »
@all

Here are the projected commutators to be tested when parts are available.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #496 on: May 03, 2009, 01:48:37 AM »
@all

I have been looking for the sliprings, the brushes and the brush holders and the prices are out of my reach.

I will try to build a slipring assembly like the one on the graphic.

If you take a good look at the connection logic, you will see that it is a correct way of switching batteries continuosly without the losses that 6 transistors will give to the last circuit schematic.

I could be wrong though.

If I cant do it for some reason, maybe somebody with some ingenuity can finish it.
All the information is here.

Jesus
« Last Edit: May 03, 2009, 02:14:02 AM by nievesoliveras »

nievesoliveras

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Re: Feedback To Source
« Reply #497 on: May 03, 2009, 05:13:50 PM »
@all

Is there somebody on this world that can help me with the making of these commutator pieces for free?

Jesus

Mk1

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Re: Feedback To Source
« Reply #498 on: May 03, 2009, 06:41:08 PM »
Hi jesus, i was planing on making some my self , my idea is to make then from a circle of falt pc copper board.

i posted a picture i hope you will get the idea , making a axial commutatro is harder then making a flat one.

Mark

WilbyInebriated

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Re: Feedback To Source
« Reply #499 on: May 03, 2009, 07:19:33 PM »

nievesoliveras

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Re: Feedback To Source
« Reply #500 on: May 04, 2009, 12:44:19 AM »
Hi jesus, i was planing on making some my self , my idea is to make then from a circle of falt pc copper board.

i posted a picture i hope you will get the idea , making a axial commutatro is harder then making a flat one.

Mark

Thank you @mk1 !

The problem with a flat commutator is to hold the brush holder in place.
But your idea is good.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #501 on: May 04, 2009, 12:51:26 AM »
hi jesus,
maybe this will help?
http://sites.google.com/site/diydcmotors/build-a-motor-from-scratch/commutator

Thank you @wilbyinebriated !

That person's idea is very similar to mine. The difference is that he is making a commutator that is continuous.
I am trying to make two copper commutators that has a continuous part and a not continuous part.

But the idea is the same with the copper pipe.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #502 on: May 07, 2009, 03:45:50 PM »
@all

I have been having problems to connect to the site. Each time I try to connect in the morning, I receive a message that the server cannot be found and the machine freezes.

I have been trying to post a graphic that shows different micro switches that can be used instead of a complicated commutator that can stop the rotor.

Jesus

Pirate88179

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Re: Feedback To Source
« Reply #503 on: May 07, 2009, 06:29:32 PM »
Jesus:

There is an even more simple micro switch on those disposable camera boards...well, at least on the Kodak style I have seen.  It is just 2 very thin strips of copper held in a small plastic base.  It takes almost no pressure to make a connection using these.

Bill   PS  Try using Firefox (Mozilla.com) as your browser.  Stefan said this site's new software is optimized for use with Firefox.  It is much faster, and safer than IE.

nievesoliveras

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Re: Feedback To Source
« Reply #504 on: May 07, 2009, 10:58:14 PM »
Jesus:

There is an even more simple micro switch on those disposable camera boards...well, at least on the Kodak style I have seen.  It is just 2 very thin strips of copper held in a small plastic base.  It takes almost no pressure to make a connection using these.

Bill   PS  Try using Firefox (Mozilla.com) as your browser.  Stefan said this site's new software is optimized for use with Firefox.  It is much faster, and safer than IE.

Thank you @pirate

I have seen those little swtches and I have 2 of them.
The problem needing solving is that the micro switch needs to have a normally close connection and a normally open connection in order to do the battery switcher.
Also it needs to be 2 of them. One for switching the batteries positive and the other to switch the rectified dc voltage to the batteries.

There is one micro switch that is double post and double through, but its price is too high for me and that is without the shipping and handling amount.

I will see what I can do.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #505 on: May 09, 2009, 11:31:31 PM »
@all

Here are the photos of the commutator construction progress.
It is made from a cooper straight union.
I learnt that using the half rings leftovers from the cuts makes the future sliprings to slip better.
Now I will take measurements to cut the piece of round wood, the exact center of the dowel in order to drill the center hole and get it all together with epoxy as one solid and sanded smooth commutator or slipring. Then come the brush making process.

It has not been easy, but it has been fun to build this commutator from scratch.
The other options were too expensive for me to achieve.
Using the cut leftovers as shown, solve the rotor stopping problem.

Jesus

Pirate88179

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Re: Feedback To Source
« Reply #506 on: May 10, 2009, 12:23:06 AM »
@ Jesus:

Nice handiwork there.  I'll bet those work nicely for you.  Plus, you can modify them if needed, since you made them from scratch in the first place.  If one of the expensive ones was not exactly what you wanted, you would be stuck with it.  Nice job.

Bill

nievesoliveras

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Re: Feedback To Source
« Reply #507 on: May 10, 2009, 12:44:16 AM »
@ Jesus:

Nice handiwork there.  I'll bet those work nicely for you.  Plus, you can modify them if needed, since you made them from scratch in the first place.  If one of the expensive ones was not exactly what you wanted, you would be stuck with it.  Nice job.

Bill

Thank you @pirate !

It still needs a lot of work, but I am happy I did it, even if it fails as everything has till now.

Jesus

nievesoliveras

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Re: Feedback To Source
« Reply #508 on: May 13, 2009, 03:02:52 PM »
@all

Here are the photos of my first commutator.
The only problem at the moment is that the PC11 glue I used does not want to cure completely. It is still sticky.

Jesus

Pirate88179

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Re: Feedback To Source
« Reply #509 on: May 13, 2009, 09:49:51 PM »
Jesus:

Maybe try sticking it outside in the sunshine for a bit?  The solar heating might just do the final curing for you.  Nice job there.

Bill